index

Returns the position of the first element in this which contains data.

Example: Get the index of data:

public static int main () {
	Queue<int> queue = new Queue<int> ();
	queue.push_tail (1);
	queue.push_tail (2);
	queue.push_tail (3);

	// Output: ``1``
	uint pos = queue.index (2);
	print ("%u\n", pos);

	return 0;
}

valac --pkg glib-2.0 GLib.Queue.index.vala

Parameters:

this	a Queue
data	the data to find

Returns:

the position of the first element in this which contains data, or -1 if no element in this contains data